Résultats de la recherche
-
Fishes in pelagic catches in the vicinity of the South Shetland Island during the 6th Antarctic expedition of rv Kaiyo Maru, 1990/1991
Abstract: During the 6th Antarctic Expedition of R/V Kaiyo Maru (1990/1991), observations on the ... occurrence and abundance of fishes in a total of 102 pelagic hauls for the Antarctic krill were made. Of the ... 102 net hauls, a total of 104 fishes belonging to 4 families and 16 species were captured in 25 tows ... Cryodraco antarcticus was the next (14 individuals; 13.5% in number). The standard length of L. larseni ...
Meeting Document : WG-KRILL-93/50 : Auteur(s): T. Iwami, T. Ichii, H. Ishii and M. Naganobu (Japan)
-
Revision of icefish (C. gunnari) stock estimate in the South Georgia area on the basis of the Russian trawl-acoustic survey 2002
Abstract: Revision of icefish (С.gunnari) stock estimate in South Georgia Area was caused by ... elaboration of the following methodical aspects of trawl-acoustic survey: the processing method improvement ... for target strength estimates using in situ measurement data; the combination of trawl and acoustic ... estimates and its statistical characteristics. Major sources of uncertainties in icefish stock estimates and ...
Meeting Document : WG-FSA-SAM-04/10 : Auteur(s): Gasyukov, P.S., Kasatkina, S.M.
-
Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
Abstract: We studied the relationship between the proximity of land and the distribution and ... swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill ... -sectional areas of swarms were significantly larger inshore, with a mean value of 120 m 2 in the 0 to 50 km ... zone compared to <80 m 2 further offshore. The packing concentration of krill within inshore swarms ...
Meeting Document : WG-EMM-10/P09 : Auteur(s): T. Klevjer, G.A. Tarling and S. Fielding
-
Censuses in the northernmost colony of Emperor penguin (Aptenodytes forsteri) in the tip of the Antarctic Peninsula at Snow Hill Island, Weddell Sea, Antarctica
Abstract: Breeding colonies of the emperor penguin Aptenodytes forsteri are distributed ... throughout the Antarctic seasonal pack ice zone. One of the last colonies of emperors penguins discovered is ... situated on the south coast of Snow Hill Island, constituting the northernmost colony known in Antarctica ... . We conducted a census of adult individuals using aerial photographs taken from an aircraft flight ...
Meeting Document : WG-EMM-14/56 : Auteur(s): M. Libertelli and N. Coria (Argentina)
-
Streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources (SC-CAMLR)
Abstract: In recent years, the Scientific Committee has been dealing with a great diversity of ... important issues for which the Commission was expecting advice. The current structure of the Working Groups ... meetings and a large diversity of important issues. A number of important issues are not being addressed ... structure of the Scientific Committee. These options include having three meeting periods timetabled ...
Meeting Document : WG-EMM-15/59 : Auteur(s): G. Watters (USA), A. Constable and D. Welsford (Australia)
-
Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2015- Part C: Data analysis and MPA scenario development
justification for the development of a marine protected area (MPA) in the Weddell Sea planning area. In ... documents (Part A-C). SC-CAMLR-XXXIV/BG/15 (Part A) sets out the general context of the establishment of ... the means and the results of the scientific analyses and the development of objectives and priority ... areas for a Weddell Sea MPA. Here, the delegation of Germany intends to update the Scientific Committee ...
Meeting Document : SC-CAMLR-XXXIV/BG/17 : Auteur(s): Delegation of Germany
-
ANNUAL CHANGES IN SPECIES COMPOSITION AND ABUNDANCE OF BY-CATCH FISH COLLECTED BY JAPANESE KRILL SCIENTIFIC OBSERVERS IN THE NORTH OF SOUTH GEORGIA (CCAMLR SUBAREA 48.3), DURING AUSTRAL WINTER FROM 2002 TO 2008
Abstract: Species composition and abundance of by-catch fish were analyzed using the fish by ... north of South Georgia during the austral winter from 2002 to 2008. A total of 19 species belonging to 8 ... most abundant. Different life stages of K. anderssoni, Gymnoscopelus nicholsi, C. gunnari and L ... around South Georgia. The length frequency distribution of C. gunnari varied with years and may indicate ...
Meeting Document : WG-EMM-11/40 : Auteur(s): T. Iwami, K. Taki and M. Kiyota (Japan)
-
DISCRIMINATION OF ENVIRONMENTAL VARIABLES THAT INFLUENCE THE CATCH PER UNIT EFFORT: THE CASE OF THE ANTARCTIC KRILL FISHERY
Abstract: The use of the catch per unit effort (CPUE) as an index of abundance usually requires a ... standardization process consisting of isolating all those exogenous factors from temporal variations in abundance ... vessel efficiency, variations in fishing strategies, and environmental fluctuations. The selection of the ... latter has been considered to be one of the most difficult, arbitrary, and poorly documented stages since ...
Meeting Document : WG-EMM-11/P3 : Auteur(s): J.C. Quiroz, R. Wiff, M.A. Barrientos and F. Contreras
-
Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2
slightly lower than the permissible level of 0.5 mg/kg-1 set by the New Zealand Food Safety Authority ... (NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ... whitsoni) being only slightly lower than D. eleginoides, whilst the levels of ice fish (Chionobathyscus ...
Meeting Document : WG-FSA-07/24 : Auteur(s): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)
-
Some notes on by-catch of fishes and salps caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (January to February 1999)
fisheries by F/V Niitaka Maru were made from 3 January to 4 February 1999 in the vicinity of the South ... Shetland Islands. Among 74 net hauls quantitatively examined, only a total of 5 specimens of juvenile ... hauls and those estimated value was 20 to 3560 ind./t of krill. By-catch fishes fed on Thysanoessa ... macrura and Euphausia superba was not found in their stomachs. Abundance of salps in krill catches could ...
Meeting Document : WG-EMM-00/54 : Auteur(s): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)